JPS6431950A - Soft-nitriding steel member - Google Patents

Soft-nitriding steel member

Info

Publication number
JPS6431950A
JPS6431950A JP18662087A JP18662087A JPS6431950A JP S6431950 A JPS6431950 A JP S6431950A JP 18662087 A JP18662087 A JP 18662087A JP 18662087 A JP18662087 A JP 18662087A JP S6431950 A JPS6431950 A JP S6431950A
Authority
JP
Japan
Prior art keywords
steel member
soft
content
surface hardness
compsn
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP18662087A
Other languages
Japanese (ja)
Inventor
Yoshihisa Miwa
Kazuhiro Tomiyoshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP18662087A priority Critical patent/JPS6431950A/en
Publication of JPS6431950A publication Critical patent/JPS6431950A/en
Pending legal-status Critical Current

Links

Landscapes

  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

PURPOSE:To improve the surface hardness of the titled steel member without lowering the toughness by subjecting the steel member in which the contents of Cr and Al are particularly specified to a soft-nitriding treatment. CONSTITUTION:The compsn. of the steel member is formed with, by weight, 0.15-0.40% C, <=0.50% Si, 0.50-1.50% Mn, 0.90-1.50% Cr, 0.05-0.20% V, 0.005-0.02% Al, 0.005-0.02% N and the balance Fe. Said steel is subjected to the soft-nitriding treatment by an ordinary method. In said compsn., the surface hardness is increased by specifying the contents of Al and Cr. In the range of Al content, the surface hardness becomes the approximately fixed state for the fixed content in the range of Cr content as well as the effect that the toughness is nearly lowered can be obtd.
JP18662087A 1987-07-28 1987-07-28 Soft-nitriding steel member Pending JPS6431950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18662087A JPS6431950A (en) 1987-07-28 1987-07-28 Soft-nitriding steel member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18662087A JPS6431950A (en) 1987-07-28 1987-07-28 Soft-nitriding steel member

Publications (1)

Publication Number Publication Date
JPS6431950A true JPS6431950A (en) 1989-02-02

Family

ID=16191767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18662087A Pending JPS6431950A (en) 1987-07-28 1987-07-28 Soft-nitriding steel member

Country Status (1)

Country Link
JP (1) JPS6431950A (en)

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